Reference signal resource configuration method and device

Abstract

A method and device for configuring reference signal resources are disclosed. By limiting the reference signal resource configuration behavior of a base station, different reference signal resources are time-division multiplexed; or, without limiting the configuration behavior of the base station, when the base station configures multiple reference signal resources concurrently, the terminal discards the reference signal resources that collide according to certain rules; or, the terminal can report its own processing capability for the reference signal resources, and the base station reasonably configures the reference signal resources for the terminal according to the capability reported by the terminal, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collision of reference signal resources, improving the reliability of communication, and reducing the processing complexity of the terminal chip.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method and device for configuring reference signal resources. Background Art

[0002] Using new radio (NR) technology for positioning can improve positioning accuracy. Among them, in the uplink-based positioning technology, the terminal sends a reference signal, such as a sounding reference signal (SRS), according to the configuration of the base station. The base station measures the reference signal sent by the terminal to obtain its arrival time or arrival angle, and then the distance and direction between the terminal and the base station can be obtained, and the terminal's position can be estimated.

[0003] Currently, SRS has many uses, such as beam management, codebook transmission, non-codebook transmission, antenna switching, etc. Now the function of positioning has been added, and the SRS resources used for positioning and the SRS resources used for other purposes are configured independently. That means that at the same time, the terminal is configured with both SRS resources for positioning and SRS resources for other purposes. That is, the terminal needs to send SRS resources for multiple purposes at the same time. The configuration of SRS resources includes bandwidth, period, initialization value, time-frequency position, etc. Figure 1 In the example shown, the SRS resources for non-codebook transmission and the SRS resources for positioning, as well as the SRS resources for positioning in different resource sets, have different periods and may collide in the same time slot. However, for SRS resources with the same period for the same purpose, collision may also occur on the same symbol.

[0004] When multiple SRS resources are concurrently used at the same time or on the same symbol, it poses a great challenge to the chip processing capability of the terminal. On the one hand, the total chip resources used for SRS resource processing are limited, and the chip resources occupied by SRS processing are different for different purposes. For example, SRS resources used for non-codebook transmission may occupy more processing resources than SRS resources used for positioning. So, when the total processing resources are fixed, how to reasonably configure SRS resources for multiple purposes becomes an urgent problem to be solved. Summary of the invention

[0005] The embodiments of the present application provide a method and apparatus for configuring reference signal resources to reasonably configure reference signal resources for various purposes.

[0006] In a first aspect, a method for configuring a reference signal resource is provided, comprising: receiving reference signal resource configuration information of a base station. When at least two reference signal resources indicated by the reference signal resource configuration information are located on the same orthogonal frequency division multiplexing (OFDM) symbol, only one of the at least two reference signal resources is mapped on the OFDM symbol.

[0007] In this aspect, when the base station configures multiple reference signal resources concurrently, the terminal discards the reference signal resources that collide according to certain rules, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collisions of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip.

[0008] In one possible implementation, a first reference signal resource among the at least two reference signal resources is used for a first purpose, a second reference signal resource among the at least two reference signal resources is used for a second purpose, and the terminal only maps the first reference signal resource for the first purpose on the OFDM symbol; or, the first reference signal resource among the at least two reference signal resources is used for the first purpose, the second reference signal resource among the at least two reference signal resources is used for the second purpose, and the terminal only maps the second reference signal resource for the second purpose on the OFDM symbol; or, both of the at least two reference signal resources are used for the second purpose, and the terminal only maps one of the at least two reference signal resources for the second purpose on the OFDM symbol; the first purpose includes any one of the following purposes: beam management, antenna switching, codebook transmission, non-codebook transmission, and the second purpose includes positioning.

[0009] In this aspect, when the terminal finds that the reference signal resources configured by the base station for positioning and the reference signal resources for other purposes appear on the same symbol, the terminal may choose to map only the reference signal resources used for positioning or the reference signal resources for other purposes; when the terminal finds that multiple reference signal resources configured by the base station for positioning appear on the same symbol, the terminal may map only one of the reference signal resources used for positioning on the symbol.

[0010] In a second aspect, a method for configuring a reference signal resource is provided, comprising: sending reference signal resource configuration information to a terminal. When at least two reference signal resources indicated by the reference signal resource configuration information are located on the same OFDM symbol, receiving one of the at least two reference signal resources sent by the terminal on the OFDM symbol.

[0011] In this aspect, there is no restriction on the configuration behavior of the base station. When the base station configures multiple reference signal resources concurrently, the terminal discards the reference signal resources that collide according to certain rules, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collisions of reference signal resources, and improving communication reliability.

[0012] In one possible implementation, a first reference signal resource among the at least two reference signal resources is used for a first purpose, a second reference signal resource among the at least two reference signal resources is used for a second purpose, and the terminal only maps the first reference signal resource for the first purpose on the OFDM symbol; or, the first reference signal resource among the at least two reference signal resources is used for the first purpose, the second reference signal resource among the at least two reference signal resources is used for the second purpose, and the terminal only maps the second reference signal resource for the second purpose on the OFDM symbol; or, both of the at least two reference signal resources are used for the second purpose, and the terminal only maps one of the at least two reference signal resources for the second purpose on the OFDM symbol; the first purpose includes any one of the following purposes: beam management, antenna switching, codebook transmission, non-codebook transmission, and the second purpose includes positioning.

[0013] In a third aspect, a method for configuring a reference signal resource is provided, comprising: receiving reference signal resource configuration information of a base station, wherein N reference signal resources indicated by the reference signal resource configuration information are located on different OFDM symbols, and N is an integer greater than or equal to 2. Mapping the N reference signal resources indicated by the reference signal resource configuration information to different OFDM symbols.

[0014] In this aspect, by limiting the reference signal resource configuration behavior of the base station, different reference signal resources are time-division multiplexed, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collisions of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip.

[0015] In one possible implementation, the N reference signal resources for positioning indicated by the reference signal resource configuration information occupy different OFDM symbols; or, the N reference signal resources for positioning with the same period indicated by the reference signal resource configuration information correspond to different time slot offsets; or, the N reference signal resources indicated by the reference signal resource configuration information are used for different purposes, and the N reference signal resources occupy different OFDM symbols, or the N reference signal resources correspond to different time slot offsets; the different purposes specifically include any one of the following purposes: beam management, antenna switching, codebook transmission, non-codebook transmission, and positioning.

[0016] In this implementation, when the base station configures reference signal resources for positioning, different reference signal resources occupy different symbols; or when the base station configures multiple reference signal resources for positioning with the same period, different time slot offsets can be configured for the multiple reference signal resources, so that the multiple reference signal resources can be mapped to different symbols; or when the base station configures reference signal resources for multiple purposes, only reference signal resources for the same purpose will be configured on the same symbol, and multiple reference signal resources for different purposes are configured to occupy different symbols in a time slot to achieve time division multiplexing; or when the base station configures reference signal resources for different purposes, time division multiplexing can be achieved by configuring different time slot offsets, so that multiple reference signal resources for different purposes can be mapped to different symbols.

[0017] In a fourth aspect, a method for configuring a reference signal resource is provided, comprising: sending reference signal resource configuration information to a terminal, wherein N reference signal resources indicated by the reference signal resource configuration information are located on different orthogonal frequency division multiplexing OFDM symbols, and N is an integer greater than or equal to 2. Receive the N reference signal resources according to the reference signal resource configuration information.

[0018] In one possible implementation, the N reference signal resources for positioning indicated by the reference signal resource configuration information occupy different OFDM symbols; or, the N reference signal resources for positioning with the same period indicated by the reference signal resource configuration information correspond to different time slot offsets (slot offsets); or, the N reference signal resources indicated by the reference signal resource configuration information are used for different purposes, and the N reference signal resources occupy different OFDM symbols, or the N reference signal resources correspond to different time slot offsets; the different purposes specifically include any one of the following purposes: beam management, antenna switching, codebook transmission, non-codebook transmission, and positioning.

[0019] In a fifth aspect, a method for configuring reference signal resources is provided, comprising: reporting capability information to a base station, the capability information indicating the number of reference signal resources supported and capable of being mapped to the same OFDM symbol. Receiving reference signal resource configuration information from the base station, the number of reference signal resources indicated by the reference signal resource configuration information not exceeding the capability information. Mapping the number of reference signal resources indicated by the reference signal resource configuration information on the OFDM symbol according to the reference signal resource configuration information.

[0020] In this aspect, the terminal reports its own processing capability of reference signal resources, and the base station reasonably configures reference signal resources for the terminal based on the reported capability of the terminal, thereby reasonably configuring reference signal resources for various purposes, avoiding collision of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip; and mapping multiple reference signal resources on the same OFDM symbol improves the utilization efficiency of time domain resources.

[0021] In one possible implementation, the number of reference signal resources that can be mapped to the same OFDM symbol includes any two of the following: the number of reference signal resources for positioning that can be mapped to the same OFDM symbol and the total number of reference signal resources that can be mapped to the same OFDM symbol for positioning and for any other purpose; or, the number of reference signal resources for positioning that can be mapped to the same OFDM symbol and the total number of reference signal resources that can be mapped to the same OFDM symbol; any one of the other purposes includes: beam management, antenna switching, codebook transmission, and non-codebook transmission.

[0022] In another possible implementation, the number of reference signal resources that can be mapped to the same OFDM symbol includes any two of the following: the number of reference signal resources for positioning that can be mapped to the same OFDM symbol; or the total number of reference signal resources that can be mapped to the same OFDM symbol.

[0023] In another possible implementation, when the reported number of reference signal resources that can be mapped to the same OFDM symbol includes the number of reference signal resources for positioning that can be mapped to the same OFDM symbol, and the reference signal resources indicated by the reference signal resource configuration information include the number of reference signal resources for positioning and reference signal resources for other purposes, mapping the number of reference signal resources indicated by the reference signal resource configuration information on the OFDM symbol according to the reference signal resource configuration information includes any one of the following: when the reference signal resources for positioning and the reference signal resources for other purposes have the same time domain behavior, Only the reference signal resources for other purposes are mapped on the OFDM symbol; or, when the reference signal resources for positioning and the reference signal resources for other purposes have the same time domain behavior, only the reference signal resources for positioning are mapped on the OFDM symbol; or, when the reference signal resources for positioning and the reference signal resources for other purposes have the same time domain behavior, only the reference signal resources with a larger period are mapped on the OFDM symbol; or, when the reference signal resources for positioning and the reference signal resources for other purposes have different time domain behaviors, the reference signal resources with a higher time domain behavior are mapped on the OFDM symbol.

[0024] In a sixth aspect, a method for configuring reference signal resources is provided, comprising: receiving capability information reported by a terminal, the capability information indicating the number of reference signal resources supported and capable of being mapped to the same OFDM symbol. Sending reference signal resource configuration information to the terminal, the number of reference signal resources indicated by the reference signal resource configuration information not exceeding the capability information. Receiving, on the OFDM symbol, the number of reference signal resources indicated by the reference signal resource configuration information according to the reference signal resource configuration information.

[0025] In one possible implementation, the number of reference signal resources that can be mapped to the same OFDM symbol includes any two of the following: the number of reference signal resources for positioning that can be mapped to the same OFDM symbol and the total number of reference signal resources that can be mapped to the same OFDM symbol for positioning and for any other purpose; or, the number of reference signal resources for positioning that can be mapped to the same OFDM symbol, and the total number of reference signal resources that can be mapped to the same OFDM symbol; any other purpose includes: beam management, antenna switching, codebook transmission, and non-codebook transmission.

[0026] In another possible implementation, the number of reference signal resources that can be mapped to the same OFDM symbol includes any two of the following: the number of reference signal resources for positioning that can be mapped to the same OFDM symbol; or the total number of reference signal resources that can be mapped to the same OFDM symbol.

[0027] In a seventh aspect, a terminal is provided, which can implement the method for configuring reference signal resources in any possible implementation of the first aspect, the third aspect, the fifth aspect, or any of the above aspects. For example, the terminal can be a chip (such as a communication chip, etc.) or a terminal device. The above method can be implemented by software, hardware, or by hardware executing corresponding software.

[0028] In a possible implementation, the structure of the terminal includes a processor and a memory; the processor is configured to support the terminal to perform the corresponding functions in the above-mentioned reference signal resource configuration method. The memory is used to couple with the processor, and stores the necessary programs (instructions) and / or data of the terminal. Optionally, the terminal may also include a communication interface for supporting communication between the terminal and other network elements.

[0029] In another possible implementation, the terminal may include a unit or module for executing corresponding actions in the above method.

[0030] In another possible implementation, the terminal includes a processor and a transceiver, the processor is coupled to the transceiver, and the processor is used to execute a computer program or instruction to control the transceiver to receive and send information; when the processor executes the computer program or instruction, the processor is also used to implement the above method. The transceiver can be a transceiver, a transceiver circuit, or an input-output interface. When the terminal is a chip, the transceiver is a transceiver circuit or an input-output interface.

[0031] In another possible implementation, the structure of the terminal includes a processor, and the processor is configured to support the terminal to perform corresponding functions in the above-mentioned reference signal resource configuration method. The terminal may be a chip system, or a terminal device or a network device.

[0032] In yet another possible implementation, the structure of the terminal includes a processor, and the processor is used to couple with a memory, read instructions in the memory, and implement the above method according to the instructions.

[0033] In yet another possible implementation, the structure of the terminal includes a transceiver for implementing the above-mentioned method for configuring reference signal resources.

[0034] When the terminal is a chip, the transceiver may be an input / output unit, such as an input / output circuit or a communication interface. When the terminal is a user equipment, the transceiver may be a transmitter / receiver or a transmitter / receiver.

[0035] In an eighth aspect, a base station is provided, which can implement the method for configuring reference signal resources in any possible implementation of the second aspect, the fourth aspect, the sixth aspect, or any of the above aspects. For example, the base station can be a chip (such as a baseband chip, or a communication chip, etc.) or a base station device, and the above method can be implemented by software, hardware, or by hardware executing corresponding software.

[0036] In a possible implementation, the structure of the base station includes a processor and a memory; the processor is configured to support the base station in executing the corresponding functions in the above-mentioned reference signal resource configuration method. The memory is used to couple with the processor, and stores the necessary programs (instructions) and data of the base station. Optionally, the base station may also include a communication interface for supporting communication between the base station and other network elements.

[0037] In another possible implementation, the base station may include a unit module for executing corresponding actions in the above method.

[0038] In another possible implementation, a processor and a transceiver are included, the processor is coupled to the transceiver, and the processor is used to execute a computer program or instruction to control the transceiver to receive and send information; when the processor executes the computer program or instruction, the processor is also used to implement the above method. The transceiver can be a transceiver, a transceiver circuit, or an input-output interface. When the base station is a chip, the transceiver is a transceiver circuit or an input-output interface.

[0039] In yet another possible implementation, the structure of the base station includes a processor; the processor is configured to support the base station in executing corresponding functions in the above-mentioned method for configuring reference signal resources.

[0040] In yet another possible implementation, the structure of the base station includes a processor, and the processor is used to couple with a memory, read instructions in the memory, and implement the above method according to the instructions.

[0041] In yet another possible implementation, the structure of the base station includes a transceiver for implementing the above-mentioned method for configuring reference signal resources.

[0042] When the base station is a chip, the transceiver may be an input / output unit, such as an input / output circuit or a communication interface. When the base station is a network device, the transceiver may be a transmitter / receiver (also referred to as a transmitter / receiver).

[0043] In a ninth aspect, a computer-readable storage medium is provided, wherein instructions are stored in the computer-readable storage medium, and when the computer-readable storage medium is run on a computer, the computer executes the methods described in the above aspects.

[0044] In the tenth aspect, a communication chip is provided, in which instructions are stored, and when the chip is run on a network device or a terminal device, the computer executes the methods described in the above aspects.

[0045] In an eleventh aspect, a computer program product comprising instructions is provided, which, when executed on a computer, enables the computer to execute the methods described in the above aspects.

[0046] In the twelfth aspect, a communication system is provided, comprising the terminal described in the seventh aspect and the base station described in the eighth aspect. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 A schematic diagram of an example of SRS resources for the same or different purposes colliding at the same time;

[0048] Figure 2 A schematic diagram of a communication system architecture applicable to this application;

[0049] Figure 3 A schematic diagram of another communication system architecture applicable to this application;

[0050] Figure 4 A schematic diagram of a process based on uplink positioning involved in an embodiment of the present application;

[0051] Figure 5 is a schematic diagram of an example base station performing positioning according to received SRS resources;

[0052] Figure 6 A schematic diagram of a flow chart of a method for configuring reference signal resources provided in an embodiment of the present application;

[0053] Figure 7 A schematic diagram of a flow chart of another method for configuring reference signal resources provided in an embodiment of the present application;

[0054] Figure 8 A schematic diagram of configuration of multiple reference signal resources in a time slot;

[0055] Fig. 9 A schematic diagram of configuration of multiple reference signal resources in multiple time slots;

[0056] Fig.10 A schematic diagram of a flow chart of another method for configuring reference signal resources provided in an embodiment of the present application;

[0057] Fig.11 A schematic diagram of the structure of a terminal provided in an embodiment of the present application;

[0058] Fig.12 A schematic diagram of the structure of a base station provided in an embodiment of the present application;

[0059] Fig.13 A schematic diagram of the structure of another terminal provided in an embodiment of the present application;

[0060] Fig.14 A schematic diagram of the structure of another base station provided in an embodiment of the present application;

[0061] Fig.15 A schematic diagram of the structure of another terminal provided in an embodiment of the present application;

[0062] Fig.16 A schematic diagram of the structure of another base station provided in an embodiment of the present application;

[0063] Fig.17 A schematic diagram of a simplified structure of a terminal provided in an embodiment of the present application;

[0064] Fig.18 A schematic diagram of the structure of another simplified base station provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] The embodiments of the present application are described below in conjunction with the drawings in the embodiments of the present application.

[0066] For example, Figure 2A schematic diagram of a communication system architecture applicable to the present application is shown, and the communication system may include a core network, a radio access network (RAN) and a terminal device, wherein the core network may include functions such as access and mobility management function (AMF), location management function (LMF), etc., wherein AMF can implement functions such as gateway, and LMF can implement functions such as positioning center. Of course, the core network may also include other network elements, which are not listed here one by one. AMF and LMF may be connected via an NLs interface. RAN may include one or more network devices, and the network device may be, but is not limited to, ng-eNB, gNB, etc., wherein ng-eNB is an LTE base station accessing a 5G core network, and gNB is a 5G base station accessing a 5G core network. The terminal device includes one or more user equipment (UE). The radio access network may be connected to the core network via AMF via the NG-C interface, and the terminal device may be connected to the radio access network via ng-eNB via LTE-Uu, or may be connected to the radio access network via ng-eNB and gNB via NR-Uu.

[0067] Figure 3 A schematic diagram of another communication system architecture applicable to the present application is shown, in which the network equipment may include a location management component (LMC), which can implement part of the functions of LMF, thereby eliminating the need to introduce the 5G core network via AMF.

[0068] The communication system used in the embodiment of the present application may include a single or multiple gNBs and a single or multiple UEs. A single gNB may transmit data or control signaling to a single or multiple UEs. Multiple gNBs may also transmit data or control signaling to a single UE at the same time.

[0069] It should be understood that Figure 2 and Figure 3 This is only an exemplary description and does not specifically limit the type, quantity, connection method, etc. of network elements included in the communication system to which this application is applicable.

[0070] The LMF involved in the embodiments of the present application is a device or component deployed in the core network to provide positioning function for the UE.

[0071] The LMC involved in the embodiments of the present application is a partial functional component of the LMF and can be integrated on the gNB on the NG-RAN side.

[0072] The base station involved in this application may be a device that can communicate with the terminal. The base station may be any device with wireless transceiver functions. Including but not limited to: base station (NodeB), evolved base station (eNodeB), base station in the fifth generation (5G) communication system, base station or base station in the future communication system, access node in WiFi system, wireless relay node, wireless backhaul node, etc. The base station may also be a wireless controller in the cloud radio access network (CRAN) scenario. The base station may also be a small station, a transmission reception point (TRP), a gNB, or a NodeB for 6G. The embodiments of this application do not limit the specific technology and specific equipment form adopted by the base station.

[0073] The terminal involved in the present application is a device with wireless transceiver function, which can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water, such as on a ship; it can also be deployed in the air, such as on an airplane, a balloon and a satellite. The terminal can be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, a wearable device, a vehicle-mounted device, etc. The embodiments of the present application do not limit the application scenarios. The terminal may sometimes also be called user equipment (UE), access terminal equipment, UE unit, mobile station, mobile station, remote station, remote terminal equipment, mobile device, wireless communication equipment, UE agent or UE device, etc.

[0074] It should be noted that the terms "system" and "network" in the embodiments of the present application can be used interchangeably. "Multiple" refers to two or more. In view of this, in the embodiments of the present application, "multiple" can also be understood as "at least two". "And / or" describes the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / ", unless otherwise specified, generally indicates that the associated objects before and after are in an "or" relationship.

[0075] The following describes the process based on uplink positioning involved in the embodiment of the present application:

[0076] Uplink-based positioning, for example, may be an uplink-time difference of arrival (UL-TDOA) positioning technology and an uplink-angle of arrival (UL-AOA) positioning technology. Figure 4 The present invention relates to a flowchart based on uplink positioning, which includes the following steps: first, the serving base station indicates the configuration information of the SRS to the terminal; the terminal starts to send the SRS after receiving the instruction of the base station; and then Figure 5 The schematic diagram of the example base station performing positioning according to the received SRS resources, the serving base station and the neighboring base station perform relevant measurements on the received SRS, such as measuring the time of arrival (TOA), angle of arrival (AOA) or reference signal receive power (RSRP) of the SRS; finally, the base station reports the measurement results to the LMF or LMU, and finally the LMF or LMU uses the received measurement information to estimate the position.

[0077] In addition, the time domain types of reference signal resources involved in this application are introduced:

[0078] The time domain types of reference signal resources include: periodic reference signal resources, semi-static reference signal resources and non-periodic reference signal resources.

[0079] Among them, periodic reference signal resources mean that when the high-level radio resource control (RRC) signaling configuration is completed, the terminal will continuously send reference signal resources according to the configured period; semi-static reference signal resources mean that after the RRC configures the reference signal resources, the terminal will not send them immediately, but needs to be activated by the medium access control-control element (MAC-CE) signaling, and then continuously send reference signal resources at the configured period until the MAC-CE signaling is deactivated; non-periodic reference signal resources mean that after the RRC configuration is completed, downlink control information (DCI) is required to trigger the sending of non-periodic reference signal resources, and they are only sent once.

[0080] In view of the problem that a terminal may be configured with reference signal resources for multiple purposes concurrently, the present application provides a method and device for configuring reference signal resources, which limits the reference signal resource configuration behavior of the base station so that different reference signal resources are time-division multiplexed to avoid collisions; or, the configuration behavior of the base station is not restricted. When the base station configures multiple reference signal resources concurrently, the terminal discards the reference signal resources that collide according to certain rules; or, the terminal can report its own processing capability for the reference signal resources, and the base station reasonably configures the reference signal resources for the terminal according to the capability reported by the terminal, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collisions of reference signal resources, improving the reliability of communication, and reducing the processing complexity of the terminal chip.

[0081] In one scenario, there is no need to restrict the configuration behavior of the base station. When the base station configures multiple reference signal resources concurrently, the terminal discards the reference signal resources that collide according to certain rules to reasonably configure reference signal resources for multiple purposes, avoid collisions of reference signal resources, and improve communication reliability. Figure 6 A schematic diagram of a flow chart of a method for configuring reference signal resources provided in an embodiment of the present application, the method may include the following steps:

[0082] S101. A base station sends reference signal resource configuration information to a terminal, wherein at least two reference signal resources indicated by the reference signal resource configuration information are located on the same OFDM symbol.

[0083] Correspondingly, the terminal receives the reference signal resource configuration information sent by the base station.

[0084] Before the terminal sends the reference signal resources, the base station must configure the sending of the reference signal resources, and configure the bandwidth, period, initialization value, time-frequency position, etc. of the reference signal resources. As mentioned above, reference signal resources have multiple uses, such as beam management, antenna switching, codebook transmission, non-codebook transmission, positioning, etc. The multiple reference signal resources configured by the base station may be located on the same OFDM symbol. However, this embodiment does not restrict the configuration behavior of the base station. Therefore, after configuring multiple reference signal resources, the base station sends reference signal resource configuration information to the terminal. Among them, at least two reference signal resources indicated by the reference signal resource configuration information are located on the same OFDM symbol. Specifically, the base station can send the above-mentioned reference signal resource configuration information through RRC signaling, system information, etc. The terminal receives the reference signal resource configuration information sent by the base station.

[0085] S102. The terminal maps only one of the at least two reference signal resources onto the OFDM symbol.

[0086] When the base station configures the concurrency of multiple reference signal resources, the terminal needs to discard the reference signal resources that collide according to certain rules to reasonably configure reference signal resources for multiple purposes and avoid collision of reference signal resources.

[0087] In this embodiment, in order to avoid collision of reference signal resources, the terminal maps only one of the at least two reference signal resources on the OFDM symbol.

[0088] The terminal can discard the reference signal resources that collide according to certain rules. There are several specific implementation methods:

[0089] In one implementation, the first reference signal resource among the at least two reference signal resources is used for a first purpose, and the second reference signal resource among the at least two reference signal resources is used for a second purpose, and the terminal only maps the first reference signal resource for the first purpose on the OFDM symbol. The first purpose includes any one of the following purposes: beam management, antenna switching, codebook transmission, non-codebook transmission, and the second purpose includes positioning. That is, if the terminal finds that the reference signal resource for positioning configured by the base station and the reference signal resource for the first purpose appear on the same OFDM symbol, the terminal discards the reference signal resource for positioning and only sends the reference signal resource for the first purpose on the OFDM symbol.

[0090] Still reference Figure 1As shown in the schematic diagram of the concurrency of SRS resources for different purposes, when the SRS resources in the SRS resource set 1 for non-codebook transmission are concurrent with the SRS resources in the SRS resource set 2 for positioning (i.e., there is overlap on the symbols), when the terminal receives the configuration information sent by the base station, it only maps the SRS resources for non-codebook transmission on one OFDM symbol.

[0091] Since the configuration behavior of the base station is not restricted, the base station may configure multiple first reference signal resources, as well as multiple second reference signal resources. Exemplarily, the terminal may discard the above-mentioned multiple second reference signal resources. For multiple first reference signal resources, for example, the first reference signal resource with a lower priority in the time domain behavior is discarded. If there are at least two first reference signal resources with the same time domain behavior, the first reference signal resource with a smaller period may be discarded. If there are at least two first reference signal resources with the same period, the terminal may arbitrarily choose to map one of the first reference signal resources; or the terminal may send the above-mentioned at least two first reference signal resources in turn, for example, sending the first first reference signal resource in the first period and sending another first reference signal resource in the next period. The execution order of the above-mentioned discarding behaviors can also be adjusted, and this application does not limit this.

[0092] For example, the base station is configured with 4 SRS resources, of which 2 SRS resources are used for positioning and 2 SRS resources are used for beam management. The terminal first discards the 2 SRS resources used for positioning. Then, assuming that of the 2 SRS resources used for beam management, one is periodic and the other is non-periodic, and the priority of the time domain behavior of the reference signal resources is: non-periodic > semi-static > periodic, the terminal discards the periodic SRS resources and only maps the above non-periodic SRS resources to the OFDM symbol. Assuming that both of the 2 SRS resources used for beam management are non-periodic and the period of one of the SRS resources is greater than the period of the other SRS resource, the terminal discards the SRS resource with a smaller period and only maps the SRS resource with a larger period to the OFDM symbol.

[0093] In another implementation, the first reference signal resource of the at least two reference signal resources is used for the first purpose, the second reference signal resource of the at least two reference signal resources is used for the second purpose, and the terminal only maps the second reference signal resource for the second purpose on the OFDM symbol. The first purpose and the second purpose have the same meaning as above. That is, if the terminal finds that the reference signal resource for positioning configured by the base station and the reference signal resource for the first purpose appear on the same OFDM symbol, the terminal discards the reference signal resource for the first purpose and only sends the reference signal resource for positioning on the OFDM symbol. If the base station configures multiple first reference signal resources and multiple second reference signal resources, the other reference signal resources can be discarded with reference to the rules for discarding / selecting reference signal resources by the terminal in the above implementation, and the selected reference signal resources can be mapped to the OFDM symbol.

[0094] In another implementation, the at least two reference signal resources are used for the second purpose, and the terminal maps only one of the at least two reference signal resources for the second purpose on the OFDM symbol. The second purpose refers to positioning. That is, if the terminal finds that multiple reference signal resources configured by the base station for positioning appear on the same OFDM symbol, the terminal can only map one of the reference signal resources for positioning on the OFDM symbol. If the base station configures multiple reference signal resources for positioning, other reference signal resources can be discarded with reference to the rules for discarding / selecting reference signal resources by the terminal in the above implementation, and the selected reference signal resources can be mapped to the OFDM symbol.

[0095] Still reference Figure 1 As shown in the schematic diagram of the concurrency of SRS resources for the same purpose, when the SRS resources in the SRS resource set 2 used for positioning are concurrent with the SRS resources in the SRS resource set 3 used for positioning (i.e., there is overlap in the symbols), the terminal can discard the SRS resources in resource set 2 or resource set 3 and only map the SRS resources in one of the resource sets on the OFDM symbol.

[0096] It can be understood that the concurrent reference signal resources mentioned in this embodiment (regardless of the purpose) all belong to the same time domain type (periodic, semi-static or non-periodic), that is, the concurrent reference signal resources are periodic, or the concurrent reference signal resources are semi-static, or the concurrent reference signal resources are non-periodic.

[0097] S103: The terminal sends one of the at least two reference signal resources mapped to the OFDM symbol to the base station.

[0098] Correspondingly, the base station receives one of the at least two reference signal resources mapped to the OFDM symbol.

[0099] The terminal discards one of the at least two reference signal resources in the above steps, and only maps one of the at least two reference signal resources on the above OFDM symbol. Therefore, the terminal sends one of the at least two reference signal resources mapped on the above OFDM symbol to the base station. Since the terminal processes the reference signal resource that collides, the base station can receive one of the at least two reference signal resources mapped on the above OFDM symbol in a timely manner.

[0100] Furthermore, since the base station only receives one of the at least two reference signal resources mapped to the OFDM symbol, the base station can avoid configuring the terminal to concurrently send at least two reference signal resources on the same OFDM symbol when subsequently configuring the reference signal resources for the terminal.

[0101] According to a method for configuring reference signal resources provided in an embodiment of the present application, when a base station configures multiple reference signal resources concurrently, a terminal discards reference signal resources that collide according to certain rules, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collisions of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip.

[0102] In another scenario, by limiting the reference signal resource configuration behavior of the base station, different reference signal resources can be time-division multiplexed to reasonably configure reference signal resources for various purposes, avoid collision of reference signal resources, and improve communication reliability. Figure 7 A flowchart of another method for configuring reference signal resources provided in an embodiment of the present application is provided. The method may include the following steps:

[0103] S201. A base station sends reference signal resource configuration information to a terminal, wherein N reference signal resources indicated by the reference signal resource configuration information are located on different OFDM symbols, and N is an integer greater than or equal to 2.

[0104] Correspondingly, the terminal receives the reference signal resource configuration information.

[0105] As mentioned above, reference signal resources have multiple uses, such as beam management, antenna switching, codebook transmission, non-codebook transmission, positioning, etc. The terminal needs to send multiple reference signal resources of different uses or the same use to the base station. Before the terminal sends the reference signal resources, the base station must configure the sending of the reference signal resources, and configure the bandwidth, period, initialization value, time-frequency position, etc. of the reference signal resources. This embodiment may restrict the configuration of the base station. Specifically, the base station configures multiple reference signal resources located on different OFDM symbols. The base station sends reference signal resource configuration information to the terminal, wherein the multiple reference signal resources indicated by the above reference signal resource configuration information are located on different OFDM symbols. Specifically, the base station may send the above reference signal resource configuration information through RRC signaling, system information, etc. The terminal receives the reference signal resource configuration information.

[0106] S202. The terminal maps the N reference signal resources indicated by the reference signal resource configuration information to different OFDM symbols.

[0107] After receiving the reference signal resource configuration information, the terminal maps the multiple reference signal resources indicated by the reference signal resource configuration information to different OFDM symbols to avoid collision of multiple reference signal resources.

[0108] Specifically, in one implementation, the N reference signal resources for positioning indicated by the reference signal resource configuration information occupy different OFDM symbols. That is, when the base station configures the reference signal resources for positioning, different reference signal resources occupy different OFDM symbols. For example, Figure 8 The diagram shows the configuration of multiple reference signal resources in a time slot (12 OFDM symbols), in which resource-1 (resource-1) used for positioning and resource-2 (resource-2) used for positioning are configured with different starting symbol positions in a time slot and occupy different symbol positions to avoid collision.

[0109] In another implementation, the N reference signal resources for positioning with the same period indicated by the reference signal resource configuration information correspond to different time slot offsets. That is, when the base station configures multiple reference signal resources for positioning with the same period, it can configure different time slot offsets for the multiple reference signal resources, so that the multiple reference signal resources can be mapped to different OFDM symbols. Fig. 9The configuration diagram of multiple reference signal resources in multiple time slots shown in the figure shows that although the periods of resource-1 (resource-1) used for positioning and resource-3 (resource-3) used for positioning are both 4 time slots, they are located at different time slot offsets, so that resource-1 and resource-3 can be mapped to different OFDM symbols to avoid collision.

[0110] In another implementation, the N reference signal resources indicated by the reference signal resource configuration information are used for different purposes, and the N reference signal resources occupy different OFDM symbols, wherein the different purposes specifically include any one of the following purposes: beam management, antenna switching, codebook transmission, non-codebook transmission, and positioning. That is, when the base station configures reference signal resources for multiple purposes, it will only configure reference signal resources for the same purpose on the same OFDM symbol, and configure multiple reference signal resources for different purposes to occupy different OFDM symbols in a time slot to achieve time division multiplexing. Still referring to Figure 8 , resource-1 used for positioning and resource-3 used for other purposes occupy different symbol positions in one time slot to avoid collision.

[0111] In another implementation, the N reference signal resources indicated by the reference signal resource configuration information are used for different purposes, and the N reference signal resources correspond to different time slot offsets. The meaning of different purposes is the same as described above. That is, when the base station configures reference signal resources for different purposes, it can implement time division multiplexing by configuring different time slot offsets, so that multiple reference signal resources for different purposes can be mapped to different OFDM symbols. Still referring to Fig. 9 , resource-1 used for positioning and resource-2 used for other purposes have different time slot offsets. The time slot offset of resource-1 is {0}; the time slot offset of resource-2 is {2}. Thus, resource-1 and resource-2 can be mapped to different OFDM symbols.

[0112] S203: The terminal sends the N reference signal resources mapped to different OFDM symbols to the base station.

[0113] Correspondingly, the base station receives the N reference signal resources according to the reference signal resource configuration information.

[0114] After the terminal maps the N reference signal resources indicated by the reference signal resource configuration information to different OFDM symbols, the terminal sends the multiple reference signal resources mapped to different OFDM symbols to the base station. The base station receives the multiple reference signal resources for measurement of the same purpose or different purposes.

[0115] According to a method for configuring reference signal resources provided in an embodiment of the present application, by limiting the reference signal resource configuration behavior of the base station, different reference signal resources are time-division multiplexed, thereby reasonably configuring reference signal resources for various purposes, avoiding collisions of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip.

[0116] In another scenario, the terminal can report its own processing capability of reference signal resources, and the base station reasonably configures reference signal resources for the terminal according to the capability reported by the terminal, so as to reasonably configure reference signal resources for various purposes, avoid collision of reference signal resources, and improve communication reliability. Fig.10 A flowchart of another method for configuring reference signal resources provided in an embodiment of the present application is provided. The method may include the following steps:

[0117] S301. A terminal reports capability information to a base station, where the capability information indicates the number of supported reference signal resources that can be mapped to the same OFDM symbol.

[0118] Correspondingly, the base station receives the capability information reported by the terminal.

[0119] Whether the terminal can concurrently use reference signal resources on the same OFDM symbol depends on the chip processing capability of the terminal, and specifically depends on the number of reference signal resources supported by the terminal that can be mapped to the same OFDM symbol.

[0120] In this embodiment, the terminal reports capability information to the base station, and the capability information indicates the number of reference signal resources supported and mapped to the same OFDM symbol. The base station receives the capability information reported by the terminal, so that the base station can obtain the number of reference signal resources supported by the terminal and mapped to the same OFDM symbol.

[0121] S302. The base station sends reference signal resource configuration information to the terminal, where the number of reference signal resources indicated by the reference signal resource configuration information does not exceed the capability information.

[0122] Correspondingly, the terminal receives the reference signal resource configuration information of the base station.

[0123] After receiving the capability information reported by the terminal, the base station configures the reference signal resources for the terminal according to the capability of the terminal. The number of reference signal resources concurrently transmitted by the terminal in the same OFDM symbol configured by the base station does not exceed the above capability information. Therefore, the base station sends the reference signal resource configuration information to the terminal, and the number of reference signal resources indicated by the above reference signal resource configuration information does not exceed the above capability information. The base station can send the above reference signal resource configuration information through RRC signaling, system messages, etc.

[0124] S303. The terminal maps reference signal resources of the number indicated by the reference signal resource configuration information onto the OFDM symbol according to the reference signal resource configuration information.

[0125] After the terminal receives the above-mentioned reference signal resource configuration information, since the base station sends the reference signal resource configuration information based on the capability information reported by the terminal, the terminal maps at least one reference signal resource on the above-mentioned OFDM symbol according to the above-mentioned reference signal resource configuration information, and the number of mapped reference signal resources will not exceed the capability of the terminal.

[0126] S304. The terminal sends reference signal resources of the number indicated by the reference signal resource configuration information to the base station on the OFDM symbol.

[0127] Correspondingly, the base station receives the reference signal resources of the number indicated by the reference signal resource configuration information on the OFDM symbol according to the reference signal resource configuration information.

[0128] After mapping the reference signal resource on the OFDM symbol according to the reference signal resource configuration information, the terminal sends the reference signal resource to the base station on the OFDM symbol. The reference signal resource can be used for one or more purposes. This embodiment makes it possible to map multiple reference signal resources on the same OFDM symbol, thereby improving the utilization efficiency of time domain resources.

[0129] Specifically, the capability information reported by the terminal may include the following implementations:

[0130] One implementation method is that the terminal reports the number of reference signal resources for positioning that can be mapped to the same OFDM symbol, and the total number of reference signal resources for positioning and any other purpose that can be mapped to the same OFDM symbol. Any other purpose includes: beam management, antenna switching, codebook transmission, and non-codebook transmission.

[0131] For example, the terminal reports the number N1 of SRS resources for positioning that can be mapped to the same OFDM symbol, and possible candidate values ​​are {1, 2, 4, 6, 8}, and the terminal reports the total number N1+N2 of SRS resources for positioning and non-codebook transmission that can be mapped to the same OFDM symbol, and possible candidate values ​​are {1, 2, 4, 8, 12}. In addition, the terminal may also report, or the base station may have previously learned, the number N2 of SRS resources that the terminal can map to the same OFDM symbol for non-codebook transmission (or codebook transmission, beam management, antenna switching), and possible candidate values ​​are {1, 2, 3, 4}. It can be understood that the candidate values ​​of N1 and N2 above are only examples.

[0132] Specifically, for example, if the number N1 of SRS resources for positioning that the terminal reports can be mapped to the same OFDM symbol is 4, the total number N1+N2 of SRS resources for positioning and non-codebook transmission that the terminal reports can be mapped to the same OFDM symbol is 6, and the number N2 of SRS resources for non-codebook transmission (or codebook transmission, beam management, antenna switching) that the terminal can map to the same OFDM symbol is 4, then the SRS resources that the base station can configure on the same OFDM symbol must satisfy: N1≤4, N2≤4, N1+N2≤6.

[0133] For the above capability information, the following Table 1 illustrates several base station configurations:

[0134] Table 1

[0135]

[0136]

[0137] In Table 1, it can be seen that when the number of SRS resources used for positioning is 5 and the number of SRS resources used for non-codebook transmission is 1, since the number of SRS resources used for positioning exceeds the number of SRS resources for positioning reported by the terminal that can be mapped to the same OFDM symbol (the number is 4 in the above example), this configuration of the base station is not supported. When the number of SRS resources used for positioning is 4 and the number of SRS resources used for non-codebook transmission is 4, since the total number of SRS resources used for positioning and SRS resources used for non-codebook transmission is 8, it exceeds the total number of SRS resources used for positioning and SRS resources used for non-codebook transmission reported by the terminal (the number is 6 in the above example).

[0138] In another implementation, the terminal reports the number of reference signal resources for positioning that can be mapped to the same OFDM symbol, and the terminal reports the total number of reference signal resources that can be mapped to the same OFDM symbol. The total number refers to the total number of reference signal resources that the terminal can map to the same OFDM symbol for multiple purposes, including beam management, antenna switching, codebook transmission, non-codebook transmission, and positioning.

[0139] For example, the terminal reports the number of reference signal resources for positioning that can be mapped to the same OFDM symbol, N3, and the candidate values ​​are {1, 2, 4, 6, 8}, and the total number of reference signal resources that the terminal can map to the same OFDM symbol, N4, and the candidate values ​​are {1, 2, 4, 8, 12}. It is understandable that the above candidate values ​​of N3 and N4 are only examples. It is understandable that if the reported N3=1, N4=1, it means that the terminal does not support the concurrency of reference signal resources for positioning and reference signal resources for other purposes, and does not want the reference signal resources for positioning configured by the base station to be located on the same OFDM symbol as the reference signal resources for other purposes.

[0140] Specifically, for example, the number N3 of reference signal resources for positioning that the terminal can map to the same OFDM symbol is 4, and the total number N4 of reference signal resources that the terminal can map to the same OFDM symbol is 8, then the SRS resources that the base station can configure on the same OFDM symbol must satisfy: N3≤4, N4≤8.

[0141] For the above capability information, as shown in Table 2 below, several base station configurations are illustrated:

[0142] Table 2

[0143]

[0144] In Table 2, since the total number of SRS resources used for positioning and SRS resources for other purposes is 10, which is greater than the total number N4 of reference signal resources that the terminal can map to the same OFDM symbol (in the above example, N4=8), this configuration of the base station is not supported.

[0145] Another implementation is that the terminal reports the number N5 of reference signal resources for positioning that can be mapped to the same OFDM symbol. For example, the terminal reports N5, and its candidate values ​​are {1, 2, 4, 6, 8, 16}. The base station configures the reference signal resources for positioning for the terminal according to the capability information reported by the terminal, and the configured reference signal resources for positioning do not exceed N5.

[0146] Since the terminal does not report the number of reference signal resources for other purposes that can be mapped to the same OFDM symbol, but the base station needs to configure reference signal resources for other purposes. If the terminal finds that the reference signal resources for positioning configured by the base station collide with reference signal resources for other purposes on the OFDM symbol, the terminal can have the following collision resolution methods:

[0147] One collision resolution method is that when the reference signal resources used for positioning and the reference signal resources used for other purposes have the same time domain behavior, the terminal can only map the reference signal resources used for other purposes on the OFDM symbol. The same time domain behavior means that the reference signal resources used for positioning and the reference signal resources used for other purposes are both periodic reference signal resources, or both are semi-static reference signal resources, or both are non-periodic reference signal resources.

[0148] Another collision resolution method is that when the reference signal resources used for positioning and the reference signal resources used for other purposes have the same time domain behavior, the terminal can only map the reference signal resources used for positioning on the OFDM symbol.

[0149] Another collision resolution method is that when the reference signal resources used for positioning and the reference signal resources used for other purposes have the same time domain behavior, the terminal can only map the reference signal resources with a larger period on the OFDM symbol.

[0150] Another collision resolution method is that when the reference signal resources used for positioning and the reference signal resources used for other purposes have different time domain behaviors, the terminal can map the reference signal resources with higher time domain behaviors on the OFDM symbol. The reference signal resources used for positioning and the reference signal resources used for other purposes have different time domain behaviors, for example, the reference signal resources used for positioning may be periodic, and the reference signal resources used for other purposes may be semi-static; or the reference signal resources used for positioning may be non-periodic, and the reference signal resources used for other purposes may be semi-static, and so on.

[0151] Exemplarily, the priority of the time domain behavior of the reference signal resource is: non-periodic>semi-static>periodic. That is, when the non-periodic reference signal resource collides with the periodic or semi-static reference signal resource on the same OFDM symbol, the terminal gives priority to transmitting the non-periodic reference signal resource, and other reference signal resources on the colliding symbol are discarded; if the semi-static reference signal resource collides with the periodic reference signal resource on the same OFDM symbol, the terminal gives priority to transmitting the semi-static reference signal resource, and other reference signal resources on the colliding symbol are discarded.

[0152] Another implementation is that the terminal reports the total number N6 of reference signal resources that can be mapped to the same OFDM symbol. For example, the terminal reports N6, and its candidate values ​​are {1, 2, 4, 6, 8, 16}. The base station configures reference signal resources for the same or multiple purposes for the terminal according to the capability information reported by the terminal, and the number of configured reference signal resources does not exceed N6.

[0153] According to a method for configuring reference signal resources provided in an embodiment of the present application, the terminal reports its own processing capability of the reference signal resources, and the base station reasonably configures the reference signal resources for the terminal according to the capability reported by the terminal, thereby reasonably configuring reference signal resources for various purposes, avoiding collision of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip; and mapping at least one reference signal resource on the same OFDM symbol, thereby improving the utilization efficiency of time domain resources.

[0154] Based on the same concept of the above reference signal resource configuration method, the embodiment of the present application also provides a terminal, such as Fig.11 As shown, the terminal 1000 includes: a transceiver unit 11 and a processing unit 12; wherein:

[0155] The transceiver unit 11 is used to receive reference signal resource configuration information of a base station.

[0156] The processing unit 12 is configured to map only one of the at least two reference signal resources on the OFDM symbol when the at least two reference signal resources indicated by the reference signal resource configuration information are located on the same OFDM symbol.

[0157] The above-mentioned transceiver unit 11 and processing unit 12 can refer to Figure 6 Relevant description of the terminal in the illustrated embodiment.

[0158] According to a terminal provided in an embodiment of the present application, when a base station configures the concurrency of multiple reference signal resources, the terminal discards the reference signal resources that collide according to certain rules, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collision of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip.

[0159] Based on the same concept of the above reference signal resource configuration method, the embodiment of the present application further provides a base station, such as Fig.12 As shown, the base station 2000 includes: a transceiver unit 21; wherein:

[0160] The transceiver unit 21 is configured to send reference signal resource configuration information to a terminal.

[0161] The transceiver unit 21 is further configured to receive, when the at least two reference signal resources indicated by the reference signal resource configuration information are located on the same OFDM symbol, one of the at least two reference signal resources sent by the terminal on the OFDM symbol.

[0162] For the specific implementation of the transceiver unit 21, please refer to Figure 6 Relevant description of the base station in the illustrated embodiment.

[0163] According to a base station provided in an embodiment of the present application, there is no restriction on the configuration behavior of the base station. When the base station is configured with multiple reference signal resources concurrently, the terminal discards the reference signal resources that collide according to certain rules, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collisions of reference signal resources, improving the reliability of communication, and reducing the processing complexity of the terminal chip.

[0164] Based on the same concept of the above reference signal resource configuration method, the embodiment of the present application also provides a terminal, such as Fig.13 As shown, the terminal 3000 includes: a transceiver unit 31 and a processing unit 32; wherein:

[0165] The transceiver unit 31 is configured to receive reference signal resource configuration information of a base station, wherein N reference signal resources indicated by the reference signal resource configuration information are located on different OFDM symbols, and N is an integer greater than or equal to 2.

[0166] The processing unit 32 is configured to map the N reference signal resources indicated by the reference signal resource configuration information to different OFDM symbols.

[0167] For the specific implementation of the transceiver unit 31 and the processing unit 32, please refer to Figure 7 Relevant description of the terminal in the method embodiment shown.

[0168] According to a terminal provided in an embodiment of the present application, by limiting the reference signal resource configuration behavior of the base station, different reference signal resources are time-division multiplexed, thereby reasonably configuring reference signal resources for various purposes, avoiding collision of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip.

[0169] Based on the same concept of the above reference signal resource configuration method, the embodiment of the present application further provides a base station, such as Fig.14 As shown, the base station 4000 includes: a transceiver unit 41; wherein:

[0170] The transceiver unit 41 is configured to send reference signal resource configuration information to a terminal, wherein N reference signal resources indicated by the reference signal resource configuration information are located on different orthogonal frequency division multiplexing OFDM symbols, and N is an integer greater than or equal to 2.

[0171] The transceiver unit 41 is further configured to receive the N reference signal resources according to the reference signal resource configuration information.

[0172] For the specific implementation of the transceiver unit 41, please refer to Figure 7 Relevant description of the base station in the method embodiment shown.

[0173] According to a base station provided in an embodiment of the present application, by limiting the reference signal resource configuration behavior of the base station, different reference signal resources are time-division multiplexed, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collision of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip.

[0174] Based on the same concept of the above reference signal resource configuration method, the embodiment of the present application also provides a terminal, such as Fig.15 As shown, the terminal 5000 includes: a transceiver unit 51 and a processing unit 52; wherein:

[0175] The transceiver unit 51 is used to report capability information to the base station, where the capability information indicates the number of supported reference signal resources that can be mapped to the same OFDM symbol.

[0176] The transceiver unit 51 is further configured to receive reference signal resource configuration information of the base station, where the number of reference signal resources indicated by the reference signal resource configuration information does not exceed the capability information.

[0177] The processing unit 52 is configured to map the reference signal resources of the number indicated by the reference signal resource configuration information onto the OFDM symbol according to the reference signal resource configuration information.

[0178] In one implementation, when the reported number of reference signal resources that can be mapped to the same OFDM symbol includes the number of reference signal resources for positioning that can be mapped to the same OFDM symbol, and the reference signal resources indicated by the reference signal resource configuration information include the number of reference signal resources for positioning and reference signal resources for other purposes, the processing unit 52 performs any one of the following operations: when the reference signal resources for positioning and the reference signal resources for other purposes have the same time domain behavior, only the reference signal resources for other purposes are mapped on the OFDM symbol; or, when the reference signal resources for positioning and the reference signal resources for other purposes have the same time domain behavior, only the reference signal resources for positioning are mapped on the OFDM symbol; or, when the reference signal resources for positioning and the reference signal resources for other purposes have the same time domain behavior, only the reference signal resources with a larger period are mapped on the OFDM symbol; or, when the reference signal resources for positioning and the reference signal resources for other purposes have different time domain behaviors, the reference signal resources with a higher time domain behavior are mapped on the OFDM symbol.

[0179] For the specific implementation of the above-mentioned transceiver unit 51 and the processing unit 52, please refer to Fig.10 The relevant description of the terminal in the method embodiment is shown.

[0180] According to a terminal provided in an embodiment of the present application, the terminal reports its own processing capability of reference signal resources, and the base station reasonably configures the reference signal resources for the terminal according to the capability reported by the terminal, thereby reasonably configuring reference signal resources for multiple purposes, avoiding collision of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip; and mapping at least one reference signal resource on the same OFDM symbol, thereby improving the utilization efficiency of time domain resources.

[0181] Based on the same concept of the above reference signal resource configuration method, the embodiment of the present application further provides a base station, such as Fig.16 As shown, the base station 6000 includes: a transceiver unit 61; wherein:

[0182] The transceiver unit 61 is configured to receive capability information reported by a terminal, where the capability information indicates the number of supported reference signal resources that can be mapped to the same OFDM symbol.

[0183] The transceiver unit 61 is further configured to send reference signal resource configuration information to the terminal, where the number of reference signal resources indicated by the reference signal resource configuration information does not exceed the capability information.

[0184] The transceiver unit 61 is further configured to receive, on the OFDM symbol, reference signal resources of a number indicated by the reference signal resource configuration information according to the reference signal resource configuration information.

[0185] For the specific implementation of the transceiver unit 16, please refer to Fig.10 The relevant description of the base station in the method embodiment is shown.

[0186] According to a base station provided in an embodiment of the present application, by receiving the processing capability of the reference signal resources reported by the terminal, the base station reasonably configures the reference signal resources for the terminal according to the capability reported by the terminal, thereby reasonably configuring reference signal resources for various purposes, avoiding collision of reference signal resources, improving communication reliability, and reducing the processing complexity of the terminal chip; and mapping multiple reference signal resources on the same OFDM symbol, thereby improving the utilization efficiency of time domain resources.

[0187] In an embodiment of the present application, a communication device is further provided, which may be the above-mentioned base station or terminal. The communication device is used to execute the above-mentioned reference signal resource configuration method. Part or all of the above-mentioned reference signal resource configuration method may be implemented by hardware or by software.

[0188] Optionally, the communication device may be a chip or an integrated circuit in specific implementation.

[0189] Optionally, when part or all of the reference signal resource configuration method of the above embodiment is implemented by software, the communication device includes: a memory for storing a program; a processor for executing the program stored in the memory, and when the program is executed, the communication device can respectively implement the above Figure 6 , Figure 7 , Fig.10 The configuration method of the reference signal resources provided by the terminal and the base station in the illustrated embodiment.

[0190] Optionally, the memory may be a physically independent unit or may be integrated with the processor. The memory may also be used to store data.

[0191] Optionally, when part or all of the configuration method of the reference signal resource in the above embodiment is implemented by software, the communication device may also include only a processor. The memory for storing the program is located outside the communication device, and the processor is connected to the memory through a circuit / wire to read and execute the program stored in the memory.

[0192] The processor may be a central processing unit (CPU), a network processor (NP), or a combination of a CPU and a NP.

[0193] The processor may further include a hardware chip. The hardware chip may be an application-specific integrated circuit (ASIC), a programmable logic device (PLD) or a combination thereof. The PLD may be a complex programmable logic device (CPLD), a field-programmable gate array (FPGA), a generic array logic (GAL) or any combination thereof.

[0194] The memory may include volatile memory, such as random-access memory (RAM); the memory may also include non-volatile memory, such as flash memory, hard disk drive (HDD) or solid-state drive (SSD); the memory may also include a combination of the above types of memory.

[0195] It can be understood that the units in the above-mentioned various communication device embodiments can also be called modules.

[0196] Fig.17 A simplified schematic diagram of the terminal structure is shown. For ease of understanding and illustration, Fig.17 In the example, a mobile phone is used as a terminal. Fig.17 As shown, the terminal includes a processor, a memory, a radio frequency circuit, an antenna, and an input-output device. The processor is mainly used to process communication protocols and communication data, as well as to control the terminal, execute software programs, process software program data, etc. The memory is mainly used to store software programs and data. The radio frequency circuit is mainly used for conversion between baseband signals and radio frequency signals and processing of radio frequency signals. The antenna is mainly used to send and receive radio frequency signals in the form of electromagnetic waves. Input-output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by users and output data to users. It should be noted that some types of terminals may not have input-output devices.

[0197] When data needs to be sent, the processor performs baseband processing on the data to be sent and outputs the baseband signal to the RF circuit. The RF circuit performs RF processing on the baseband signal and then sends the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the terminal, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor. The processor converts the baseband signal into data and processes the data. For ease of explanation, Fig.17 Only one memory and processor are shown. In an actual terminal product, there may be one or more processors and one or more memories. The memory may also be referred to as a storage medium or a storage device. The memory may be set independently of the processor or may be integrated with the processor, which is not limited in the embodiments of the present application.

[0198] In the embodiments of the present application, the antenna and the radio frequency circuit with transceiver functions may be regarded as the receiving unit and the sending unit of the terminal (also collectively referred to as the transceiver unit), and the processor with processing function may be regarded as the processing unit of the terminal. Fig.17 As shown, the terminal includes a transceiver unit 161 and a processing unit 162. The transceiver unit 161 may also be referred to as a receiver / transmitter (transmitter), a receiver / transmitter, a receiver / transmitter circuit, etc. The processing unit 162 may also be referred to as a processor, a processing board, a processing module, a processing device, etc.

[0199] For example, in one embodiment, the transceiver unit 161 is used to perform the following steps: Figure 6 In the embodiment shown, the actions of the terminal in steps S101 and S103; and the processing unit 162 is used to execute the following Figure 6 Step S102 in the illustrated embodiment.

[0200] For example, in another embodiment, the transceiver unit 161 is used to perform the following steps: Figure 7 The actions of the terminal in steps S201 and S203 in the embodiment shown; and the processing unit 162 is used to execute the following Figure 7 Step S202 in the illustrated embodiment.

[0201] For example, in another embodiment, the transceiver unit 161 is used to perform the following steps: Fig.10 In the embodiment shown, the actions of the terminal in steps S301, S302 and S304; and the processing unit 162 is used to execute the following Fig.10 Step S303 in the illustrated embodiment.

[0202] Fig.18A simplified schematic diagram of the structure of a base station is shown. The base station includes a radio frequency signal transceiver and conversion part and part 172, and the radio frequency signal transceiver and conversion part includes a transceiver unit 171 part. The radio frequency signal transceiver and conversion part is mainly used for the transceiver of radio frequency signals and the conversion of radio frequency signals and baseband signals; part 172 is mainly used for baseband processing, controlling the base station, etc. The transceiver unit 171 can also be called a receiver / transmitter, a receiver / transmitter, a receiving / transmitting circuit, etc. Part 172 is usually the control center of the base station, which can usually be called a processing unit, and is used to control the source base station to execute the above Figure 6 , Figure 7 , Fig.10 The steps performed by the base station.

[0203] Part 172 may include one or more boards, each of which may include one or more processors and one or more memories, and the processor is used to read and execute programs in the memory to implement baseband processing functions and control of the base station. If there are multiple boards, the boards may be interconnected to increase processing capabilities. As an optional implementation, multiple boards may share one or more processors, or multiple boards may share one or more memories, or multiple boards may share one or more processors at the same time.

[0204] For example, in one embodiment, the transceiver unit 171 is used to perform the following steps: Figure 6 The actions of the base station in steps S101 and S103 in the illustrated embodiment.

[0205] For example, in another embodiment, the transceiver unit 171 is used to perform the following steps: Figure 7 The actions of the base station in steps S201 and S203 in the illustrated embodiment.

[0206] For example, in one embodiment, the transceiver unit 171 is used to perform the following steps: Fig.10 The actions of the base station in steps S301, S302 and S304 in the illustrated embodiment.

[0207] The embodiment of the present application further provides a computer-readable storage medium, in which a computer program or instruction is stored. When the computer program or instruction is executed, the methods described in the above aspects are implemented.

[0208] The embodiment of the present application also provides a computer program product including instructions, which, when executed on a computer, enables the computer to execute the methods described in the above aspects.

[0209] An embodiment of the present application also provides a communication system, including the above-mentioned base station and terminal.

[0210] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0211] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the division of the unit is only a logical function division, and there may be other division methods in actual implementation, for example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. The mutual coupling, direct coupling, or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0212] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0213] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function according to the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted through the computer-readable storage medium. The computer instructions can be transmitted from a website site, computer, server or data center to another website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that contains one or more available media integrations. The available medium may be a read-only memory (ROM), or a random access memory (RAM), or a magnetic medium, such as a floppy disk, a hard disk, a tape, a magnetic disk, or an optical medium, such as a digital versatile disc (DVD), or a semiconductor medium, such as a solid state disk (SSD), etc.

Claims

1. A method for configuring a sounding reference signal resource, characterized in that: include: Reporting capability information, where the capability information indicates the number of sounding reference signal SRS resources for positioning mapped to the same orthogonal frequency division multiplexing OFDM symbol, and the total number of reference signal resources for positioning and any other purpose that can be mapped to the same OFDM symbol, where any other purpose includes: beam management, antenna switching, codebook transmission, and non-codebook transmission; At least one SRS resource is mapped on the OFDM symbol according to the capability information.

2. The method according to claim 1, characterized in that Also includes: Reference signal resource configuration information is received, wherein the number of reference signal resources indicated by the reference signal resource configuration information does not exceed the capability information.

3. The method according to claim 2, characterized in that Mapping at least one SRS resource on the OFDM symbol according to the capability information includes: The reference signal resources of a number indicated by the reference signal resource configuration information are mapped onto the OFDM symbol according to the reference signal resource configuration information.

4. The method according to claim 2 or 3, characterized in that: The receiving reference signal resource configuration information includes: The reference signal resource configuration information is received through radio resource control RRC signaling or system message.

5. The method according to any one of claims 1 to 4, characterized in that: The candidate values ​​for the number of sounding reference signal SRS resources for positioning mapped to the same OFDM symbol are {1, 2, 4, 6, 8}, and the candidate values ​​for the total number of reference signal resources for positioning and any other purpose that can be mapped to the same OFDM symbol are {1, 2, 4, 8, 12}.

6. The method according to any one of claims 1 to 5, characterized in that: Also includes: Report the number of reference signal resources for any other purpose that can be mapped to the same OFDM symbol.

7. The method according to any one of claims 1 to 6, characterized in that: Mapping the number of reference signal resources indicated by the reference signal resource configuration information on the OFDM symbol according to the reference signal resource configuration information includes any one of the following: When the reference signal resource used for positioning and the reference signal resource used for other purposes have the same time domain behavior, only the reference signal resource used for other purposes is mapped on the OFDM symbol; or, When the reference signal resource used for positioning and the reference signal resource used for other purposes have the same time domain behavior, only the reference signal resource used for positioning is mapped on the OFDM symbol; or, When the reference signal resource used for positioning and the reference signal resource used for other purposes have the same time domain behavior, only the reference signal resource with a larger period is mapped on the OFDM symbol; or, When the reference signal resource used for positioning and the reference signal resource used for other purposes have different time domain behaviors, the reference signal resource with a higher time domain behavior is mapped onto the OFDM symbol.

8. A method for configuring a sounding reference signal resource, characterized in that: include: Receive capability information, where the capability information indicates the number of sounding reference signal (SRS) resources for positioning mapped to the same orthogonal frequency division multiplexing (OFDM) symbol, and the total number of reference signal resources for positioning and any other purpose that can be mapped to the same OFDM symbol, where any other purpose includes: beam management, antenna switching, codebook transmission, and non-codebook transmission; At least one SRS resource is received on the OFDM symbol according to the capability information.

9. The method according to claim 8, characterized in that Also includes: Reference signal resource configuration information is sent, wherein the number of reference signal resources indicated by the reference signal resource configuration information does not exceed the capability information.

10. The method according to claim 9, characterized in that The sending of reference signal resource configuration information includes: The reference signal resource configuration information is sent via radio resource control RRC signaling or a system message.

11. The method according to any one of claims 8 to 10, characterized in that: The candidate values ​​for the number of sounding reference signal SRS resources for positioning mapped to the same OFDM symbol are {1, 2, 4, 6, 8}, and the candidate values ​​for the total number of reference signal resources for positioning and any other purpose that can be mapped to the same OFDM symbol are {1, 2, 4, 8, 12}.

12. The method according to any one of claims 8 to 11, characterized in that: Also includes: Receive the number of reference signal resources for any other purpose that can be mapped to the same OFDM symbol.

13. A computer-readable storage medium, characterized in that: The storage medium stores a computer program or instruction. When the computer program or instruction is executed by a computer, the method according to any one of claims 1 to 12 is implemented.

14. A computer program product, characterized in that The method comprises a computer program or an instruction, and when the computer program or the instruction is executed by a computer, the method according to any one of claims 1 to 12 is implemented.

15. A communication device, characterized in that: The device comprises a processor, wherein the processor is configured to execute a program or an instruction so that the communication device implements the method according to any one of claims 1 to 12.

16. The communication device according to claim 15, characterized in that: The system also includes a memory for storing the program or instruction.

17. The communication device according to claim 15 or 16, characterized in that: The communication device is a chip or an integrated circuit.

18. A terminal, characterized in that: include: A transceiver unit, configured to report capability information, wherein the capability information indicates the number of sounding reference signal SRS resources for positioning mapped to the same orthogonal frequency division multiplexing OFDM symbol, and the total number of reference signal resources for positioning and for any other purpose that can be mapped to the same OFDM symbol, wherein any other purpose includes: beam management, antenna switching, codebook transmission, and non-codebook transmission; A processing unit is used to map at least one SRS resource on the OFDM symbol according to the capability information.

19. The terminal according to claim 18, characterized in that: The transceiver unit is also used for: Reference signal resource configuration information is received, wherein the number of reference signal resources indicated by the reference signal resource configuration information does not exceed the capability information.

20. The terminal according to claim 19, characterized in that Mapping at least one SRS resource on the OFDM symbol according to the capability information includes: The reference signal resources of a number indicated by the reference signal resource configuration information are mapped onto the OFDM symbol according to the reference signal resource configuration information.

21. The terminal according to claim 19 or 20, characterized in that: The receiving reference signal resource configuration information includes: The reference signal resource configuration information is received through radio resource control RRC signaling or system message.

22. The terminal according to any one of claims 18 to 21, characterized in that: The transceiver unit is also used for: Report the number of reference signal resources for any other purpose that can be mapped to the same OFDM symbol.

23. The terminal according to any one of claims 18 to 22, characterized in that: Mapping the number of reference signal resources indicated by the reference signal resource configuration information on the OFDM symbol according to the reference signal resource configuration information includes any one of the following: When the reference signal resource used for positioning and the reference signal resource used for other purposes have the same time domain behavior, only the reference signal resource used for other purposes is mapped on the OFDM symbol; or, When the reference signal resource used for positioning and the reference signal resource used for other purposes have the same time domain behavior, only the reference signal resource used for positioning is mapped on the OFDM symbol; or, When the reference signal resource used for positioning and the reference signal resource used for other purposes have the same time domain behavior, only the reference signal resource with a larger period is mapped on the OFDM symbol; or, When the reference signal resource used for positioning and the reference signal resource used for other purposes have different time domain behaviors, the reference signal resource with a higher time domain behavior is mapped onto the OFDM symbol.

24. A base station, characterized in that: include: A transceiver unit, configured to receive capability information, wherein the capability information indicates the number of sounding reference signal SRS resources for positioning mapped to the same orthogonal frequency division multiplexing OFDM symbol, and the total number of reference signal resources for positioning and for any other purpose that can be mapped to the same OFDM symbol, wherein any other purpose includes: beam management, antenna switching, codebook transmission, and non-codebook transmission; The transceiver unit is further configured to receive at least one SRS resource on the OFDM symbol according to the capability information.

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